Question

What is the role of ATP in transport across a cell membrane?

1 .ATP is an amino acid that is used to build transport proteins.

2. ATP is an energy molecule that helps with active transport.

3. ATP is an enzyme that speeds up chemical reactions in the cell.

4. ATP is a carrier protein that transports substances across the cell membrane.

Answer 1

2. ATP is an energy molecule that helps with active transport.

Step-by-step explanation:

ATP is used to transport molecules across the membrane through active transport. Active transport means moving molecules from a less crowded area of a cell to a more crowded area. This transport requires energy in order to carry out the transfer, so energy molecules/ATP is required.